UtilityLibrary/User.cs

using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Net.Mail;
using System.Runtime.CompilerServices;
using System.Text;

namespace First_week
{
    public class User
    {
        public Guid Id { get; }
        public string Name { get; private set; }
        public string Surname { get; private set; }
        public MailAddress? Email { get; private set; }
        public DateOnly Date { get; private set; }
        public bool IsActive { get; private set; }

        public User(string name, string surname, MailAddress email, DateOnly date)
        {
            if (name == null || name.Length > 100)
                throw new Exception("Incorrect name");

            if (surname == null || surname.Length > 100)
                throw new Exception("Incorrect surname");

            if (date.CompareTo(DateOnly.FromDateTime(DateTime.Now)) > 0)
                throw new Exception("Incorrect birthdate");

            Id = Guid.NewGuid();
            Name = name;
            Surname = surname;
            Email = email;
            Date = date;
            IsActive = true;
        }

        public string GetFullName()
        {
            return ($"{Surname} {Name}");
        }

        public void UpdateEmail(MailAddress newMail)
        {
            Email = newMail;
        }

        public void UpdateDate(DateOnly date)
        {
            if (date.CompareTo(DateOnly.FromDateTime(DateTime.Now)) > 0)
                throw new Exception("Wrong date");

            Date = date;
        }

        public void Deactivate()
        {
            IsActive = false;
        }
    }
}